A public urinal so pretty, it was declared a national monument.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

Established in 1638 to battle the Black Death, this botanical garden is a treasure trove of rare flora.

Some islands... they come, they go, especially on Lake Travis.

Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

This gold-winged spire celebrates the first true flight around the world.

This working class sculpture pounds his hammer all the livelong day.

The first park built over a freeway is a brutalist masterwork.

This former coal gasification plant found a curious second life as a popular public park.

A wall of chewing gum moonlights as collective art.

A museum dedicated to the history and exploration of both popular music and science fiction.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

A floating cat sanctuary on an Amsterdam canal.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

A beautifully eclectic mix of architectural styles.

The history and future of cannabis.

This historic Amsterdam bar used to accept sailor's monkeys as payment.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

This unattributed sculpture in Amsterdam is hiding in plain sight.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.